Pump for atomizers



Dec, 4, 1928. 1,694,104

. R. MENSCHEL PUMP FOR ATOMI ZERS iled Nov. 4, 1927 Patented Dec. 4, 192 8.

UNITED STATES REINHOLD MENSGI-IEL,

OF BERLIN, GERMANY.

PUMP rota AroMIzERs.

Application filed November 4, 1927, Serial No. 231,128, and in Germany August 17, 1926.

This invention relates to a portable atomizer for use in rooms and the like; its d1mGl1-.,

from theone state to the other may be sud-'- denly or gradually. The liquid may be perfumed, if desired, so as to perfume thereby also the air in the respective room.

The invention is illustrated diagrammatically and by way of example on the accompanying drawing, on which Figure 1 is a vertical axial section through an apparatus designed according to this invention, the left hand portion of the basin (8) on the top of the apparatus being broken away for want of spaceyFigure '2 is a similar section only through the lower part ofthe apparatus and at right angles to the section shown in Fig. 1, and Figure 3 shows the wiring diagram. I

On the drawing, 8 denotes a basin intercepting and spirted too far laterally, and 29 denotes a receptacle containing the'liquid to be atomized. This receptacle may consist of glass or the like. It is carried by a vertical cylinder? and has preferably the sectional shape shown in Fig. 1, that is to say, there extends through it a vertical tubular portion constituting an extension of the cylinder 7 This latter and saidextension enclose two pipes 5 and 6, of'which 5 extends upwardly beyond the said extension and may bear on its top a spray 31, as shown. The pipe 5 is the" delivery pipe for the liquid to be atomized, and the pipe 6 is a suction pipewhich is connected at its upper end with a piece of rubber hose 28, the free end of which dips into the liquid contained in the receptacle 29.

The pipes 5 and 6 extend upwardly from a valve casing 24cenclosing two ball-valves 3 and 4, of which 3 is the delivery valve and 1 the suction valve. The ball 4 is retained in its position of restby a small sieve 39 arranged below it, the arrangement being such that when the ball is in this position, as in collecting liquid particles part of the cylindei 'l' the ball 4 is pressed against the end of the pipe 6 and closes the same. on the other hand, the valve 3 which up to then had been resting on its seat is lifted off the same and then retained by a small sieve 40-located a'little below the entrance to the pipe 5 so that the liquid can be forced upwardly in this pipe and out through the spray 31.

The piston 2 consists of soft iron and can be lifted by a solenoid coil 1 surrounding the lower half of the cylinder 7. When an electric current v is flowing through the coil 1 the piston-forming core 2 is lifted and forces the liquid upwardly, as just described. It is obviousfthat the constructional form shown is so designed that the liquid is alternately sucked into the cylinder chamber 32through the pipe 6 and forced out of it through the pipe 5. This constructional form operates,

into its former position when the coil 1 is current-less. Below the coiled spring 17 a horizontal flat spring 14 is affixed to the piston rod co-operates with two stationary contact pieces 18, as well as with a so-called bridge-member 13 which, in turn, co-operates with two stationary contact-pieces 21 located above the contact pieces 18. When the spring rises, it leaves these contact pieces whereby the respective part of the circuit (hereinafter described) is broken, and finally the bridgemember 13 is lifted off the contact pieces 21 whereby again a part of the circuit is broken. There is a thirdpair of contact pieces, viz 15, which co-operate with a fiat-contact spring 19 affixed tothe solenoid core 22 of a a solenoid coil 12. This coil is connected at one end by a wire 35 with the coil 1 and at the other end with one of the contacts 15, as well as by a wire 37 with one of the contacts 18. The other contact 18 is connected by a wire 34 with the negative pole of the source of current, and a branch 36 of this wire is connected with the other of the contacts 15, all

' as shown in Fig. 3. The other end of the coil 1 is connected with one of the contacts 21, and the other contact 21 is connected by a wire ton rod 25, and this spring which, of course, moves up and down together with the pis- 33 with the positive pole of the sourceof current.

When the current has been switched on, its path is at first: as, 21, 13, 21, 1, 35,12, 15, 37, 18, 14, 18, 34. Both solenoid coils become now excited, but the core 22 is lifted by far more quickly than the core 2,'because 22 need not overcome such a resistance (the liquid bearing upon it) as the core or piston 2 must. Consequently, the contacts 15, 15 are conductingly connected by the spring 19, and the path of the current now is: 33, 21,13, 21, 35, 12, 15, 19, 15, 36. The current continues, thus, to fiow through the coil 1, although the contact at 18, 141, 18 has beenbroken: The contacts at 15, 19, 15 lie in series with the coils 12 and 1, but in parallel with the con tacts 18, 14,18.

When the members 2, 25, and 14 arrive in their highest position, the member 1 1 lifts the contact bridge 13 offthe contact pieces 21 whereby the circuit of both coils is broken. The member or piston-forming core 2 is, therefore, now subjected to the action of the spring 17 which pulls it down, back into its initial position where, finally, the spring 14:

effects another closing of the circuit at the contactpieces 18, and so on.

When the level in the receptacle 29 has sunk to or below a certain predetermined limit, the apparatus is stopped automatically by the following device:

A vertical tube 38 extending through, and supported by, the bottom of the basin 8 serves as guide for a rod 30, the upper end 27 of which is connected with a float 9 swimming upon the liquid-in the receptacle 29; The lower end of the rod 30 is jointed by a slot and pin connection with one arm of a doublearmed lever 11, the other arm of which extends to below the contact-bridge 13 and lifts this bridge off the contact pieces 21 when the level of the liquid in the receptacle 29 has ,sunk to a certain predetermined depth. It is obvious that the circuit is then interrupted and the apparat'us, therefore, ceases to work. The parts located below the basin 8 are, prefera 1y, surrounded with a wall 26, as shown. i

I claim: v 1. In a portable atomizer for rooms and the like, in combination, a receptacle adapted to receive the liquid to be atomized, a cylinder located below this receptacle, asuctionvalve arranged in the upper part of this cylinder and a pipe'extending from this .valve to said receptacle; a delivery valve also arranged in the upper part of thecylinder, and

a delivery pipe extending fromvthis valve upwards to above the said receptacle; a piston-forming solenoid-core in the lower part of said cylinder, a solenoid coil e'ncompassthe like, in combination, a receptacle adapted to receive the liquid to be atomized, a cylinder located below this receptacle, a suction-valve arranged in the upper part of this cylinder and a pipe extending from this valve to said receptacle; 'a delivery valve also arranged in the upper part of the cylinder, and a delivery pipeextending from this valve upwards to above the said receptacle; a pistonforming solenoid-core in the lower part of said cylinder, a solenoid coil encompassing the cylinder on an adequate length, another solenoid coil and a core therein connected in series with the first-mentioned coil; two interrupters, of which one is connected with and operated by said first coil and connected in series with both coils, and the other is connected with and operated by said other coil, both interrupters so arranged as to be opened when the current has been switched on, and a third interrupter connected in parallel with the said first interrupter and so arranged as to be opened when the piston arrives at the end of its delivery'path, substantially as set forth.

3. In a portable atomizer for rooms and the like, in combination, a receptacle adapted to receive the liquid to be atomized, a cylinder located below this receptacle, a suctionvalve arranged in the upper part of this cylinder and a pipe extending from this valve to said receptacle; a delivery valve also arranged in the upper part of the cylinder, and a delivery pipe extending from this valve upwards to above the said receptacle; a pistonforming solenoid-core in the lower part of said cylinder, a solenoid coil encompassing the cylinder on an adequate length, a changeover switch inserted into the circuit of this coil; a float located in the said receptacle, an

electric change-over switching mechanism,

and means for transmitting the movements of said float to this mechanism at the ends of the paths of the said pistons.

In testimony whereof I aflix mysignature. REI NHOLD MENSCHEL. 

